C
Chenxi Hao
Researcher at Imperial College London
Publications - 26
Citations - 915
Chenxi Hao is an academic researcher from Imperial College London. The author has contributed to research in topics: Channel state information & MIMO. The author has an hindex of 13, co-authored 26 publications receiving 674 citations.
Papers
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Journal ArticleDOI
Rate splitting for MIMO wireless networks: a promising PHY-layer strategy for LTE evolution
TL;DR: Rate-splitting relies on the transmission of common and private messages, and is shown to provide significant benefits in terms of spectral and energy efficiencies, reliability, and CSI feedback overhead reduction over conventional strategies used in LTE-A and exclusively relying on private message transmissions.
Journal ArticleDOI
Rate Analysis of Two-Receiver MISO Broadcast Channel With Finite Rate Feedback: A Rate-Splitting Approach
TL;DR: In this article, the ergodic sum rate of RS-S and RS-ST schemes with quantized CSIT was studied, where the common message(s) are transmitted via a space and space-time design, respectively.
Journal ArticleDOI
MISO Networks With Imperfect CSIT: A Topological Rate-Splitting Approach
Chenxi Hao,Bruno Clerckx +1 more
TL;DR: This paper identifies the DoF region achieved by RS, introduces a novel scheme, so called topological RS (TRS), whose novelties compared with RS lie in a multi-layer structure and in transmitting multiple common messages to be decoded by groups of users rather than all users.
Posted Content
Rate Analysis of Two-Receiver MISO Broadcast Channel with Finite Rate Feedback: A Rate-Splitting Approach
TL;DR: This paper upper-bound the sum rate loss incurred by each scheme relative to Zero-Forcing Beamforming (ZFBF) with perfect CSIT and shows that RS-S scheme enables a feedback overhead reduction over ZFBF with quantized CSIT, and that both schemes offer a significant SNR gain over conventional single-user/multiuser mode switching when the feedback overhead is fixed.
Journal ArticleDOI
Achievable DoF Regions of MIMO Networks With Imperfect CSIT
TL;DR: In this article, the achievable DoF regions in a two-receiver MIMO, broadcast channel (BC), and interference channel (IC) with an arbitrary number of antennas at each node were characterized.